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2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)最新文献

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Approach to Implementation Full-duplex Communication Technology in Power Line Communication Systems 电力线通信系统中全双工通信技术的实现方法
A. Movchan, E. Rogozhnikov, E. Dmitriyev, D. Pokamestov, Kirill V. Petrovskiy
Power line communication systems, which are widely used for smart home systems, the industrial Internet of things, can be used in aviation and space technology. One of the important problems of power line communication systems is the need to increase spectral efficiency, since operation is possible in the frequency range up to 30 MHz, limited by high attenuation of signals at higher frequencies. The use of technology of full-duplex data transmission via power circuits will allow up to 2 times increase spectral efficiency. This article describes approaches to the implementation of this technology, outlines the main problems to be faced and ways to solve them. We have proposed the most effective approach in our opinion to compensate for the signal of our own transmitter in the receiving channel.
电力线通信系统,广泛用于智能家居系统,工业物联网,可用于航空和航天技术。电力线通信系统的一个重要问题是需要提高频谱效率,因为在高达30mhz的频率范围内操作是可能的,而在更高的频率上信号的高衰减是有限的。利用全双工数据传输技术通过功率电路将允许频谱效率提高2倍。本文描述了该技术的实现方法,概述了面临的主要问题和解决方法。在我们看来,我们已经提出了在接收信道中补偿我方发射机信号的最有效方法。
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引用次数: 0
Electromagnetic Response of 3D-printing Carbon-containing Matrix Structure at Sub-THz Frequency Range 3d打印含碳矩阵结构在亚太赫兹频率范围内的电磁响应
A. Badin, G. E. Kuleshov, Kirill V. Bilinsky, K. V. Simonova
In this paper the results of a research in the sub- THz range of the electromagnetic response of matrix structures based on a carbon-containing polymer obtained by 3D printing are presented. Frequency dependences of the transmission coefficient, complex permittivities of matrix structures samples at the frequency range 48-258 GHz are shown. A comparative analysis of the electromagnetic characteristics of the matrix structures with a solid material was carried out.
本文介绍了用3D打印技术制备的含碳聚合物基体结构在亚太赫兹范围内的电磁响应研究结果。给出了矩阵结构样品在48 ~ 258ghz频率范围内的透射系数、复介电常数与频率的关系。对基体结构与固体材料的电磁特性进行了对比分析。
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引用次数: 0
Performance Analysis of Dynamic Bandwidth Allocation Algorithms in GPON GPON中动态带宽分配算法性能分析
V. S. Simonov, A. Malyavko
Downstream data transmission in an optical network is performed by broadcast transmission, whereas upstream transmission must use bandwidth allocation algorithms to prevent data packets from colliding. Such scheduling algorithms must comply with the multipoint management Protocol defined in the IEEE 802 standard. A number of bandwidth allocation algorithms are known for optical networks. The purpose of this work is to compare several existing algorithms, such as UPCF, Min, and RDM (Russian Doll Model). The algorithms are modeled using a discrete event simulator implemented using the C language and developed specifically for the study of GPON networks that provide different classes of service in each optical network block. Based on the analysis of the simulation results, proposals are formulated for using each of the algorithms for the required combinations of service classes.
在光网络中,下行数据传输采用广播传输,而上行数据传输必须采用带宽分配算法,以防止数据包的碰撞。这种调度算法必须符合IEEE 802标准中定义的多点管理协议。目前已知的光网络带宽分配算法有很多。这项工作的目的是比较几种现有的算法,如UPCF、Min和RDM(俄罗斯娃娃模型)。该算法使用使用C语言实现的离散事件模拟器进行建模,并专门为研究在每个光网络块中提供不同类别服务的GPON网络而开发。基于对仿真结果的分析,提出了针对所需的服务类组合使用每种算法的建议。
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引用次数: 0
Optimal Stage Determination of Sapphire Nitridation Process Completion under High-Energy Electron Beam Influence 高能电子束影响下蓝宝石氮化工艺完成的最佳阶段确定
D. Milakhin, T. Malin, V. Mansurov, Y. Galitsyn, K. Zhuravlev
In this work, using the RHEED technique, the optimal stage of sapphire nitridation completeness was determined taking into account the electron beam influence on a nitridation process. It was found that as a result of the sapphire surface nitridation at the optimum stage of completion the A1N crystalline phase about one monolayer is formed on the surface. The A1N buffer layer growth under conditions of optimal stage of nitridation process completion is characterized by a smooth surface morphology and better crystalline perfection compared to A1N growth without nitridation or with excessive sapphire nitridation.
在本工作中,利用RHEED技术,考虑电子束对氮化过程的影响,确定了蓝宝石氮化完成的最佳阶段。结果表明,在蓝宝石表面氮化完成的最佳阶段,蓝宝石表面形成了约单层的A1N晶相。与未氮化或蓝宝石氮化过度的A1N生长相比,在氮化过程完成的最佳阶段生长的A1N缓冲层具有光滑的表面形貌和更好的晶体完美性。
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引用次数: 0
Simulation of Dustiness in the Blind Drift of Coal Mine 煤矿盲目进巷粉尘模拟
S. Lisakov, A. Sidorenko, E. Sypin
Computer simulation of the dustiness in the blind drift of coal mine was carried out. The most probable scenario for the occurrence of dustiness in the blind drift of coal mine, during the operation of mining combine, connected with the shutdown of the irrigation system due to clogging of nozzles, is determined. In this case, the determining factor affecting dustiness is the ventilation mode of operation and the associated air flow rate in the mine. The Fire Dynamics Simulator (FDS) software package of computational fluid dynamics is proposed to be used. The calculations were performed using the Large Eddy Simulation (LES) turbulence model, in the approximation of low Mach numbers (Ma <0.3)(subsonic approximation), the Deardorff model for calculating of the turbulent viscosity, and the model based on the discrete-path Euler-Lagrange method for describing of the two-phase flow. Analytical dependencies and initial data for modeling were determined: geometric parameters of the blind drift, ventilation and dust emission parameters, dispersed dust composition, initial conditions. The adequacy of the computer model developed was verified on the basis of experimental data obtained by testing the dynamics of dust aerosols at the test bench – "MGU Shakhtpozhservice" LLC. The adequacy of the developed computer model is confirmed based on satisfactory agreement of the simulation results with experimental data. The results of dustiness modeling in the blind drift were analyzed. The distribution of the coal dust mass concentration over the blind drift cross sections for various air flow values of 2.4, 3.6 and 4.8 m3/s is shown. The concentration of coal dust in the area of local ventilation fan jet action is significantly higher – up to 1.8 g/m3 for suspended dust than in the translational movement zone with permissible value of 150 mg/m3. The dependences of the concentrations for suspended and precipitated coal dust along the length of the blind drift were obtained. As a result of dispersed composition analysis, the following were established: the main maxima of the suspended particles size distribution functions by mass correspond to particle diameters of 5-7 microns, in addition, particles with diameters from 20 to 40 microns constitute a significant proportion; significant dust deposition with a diameter of more than 50 microns.
对煤矿盲目进巷中的粉尘进行了计算机模拟。确定了在联合收割机运行过程中,由于喷头堵塞导致灌溉系统停止的情况下,煤矿盲巷发生粉尘的最可能情况。在这种情况下,影响粉尘度的决定因素是作业的通风方式和矿井的伴生风量。建议使用计算流体力学的Fire Dynamics Simulator (FDS)软件包。采用低马赫数(Ma <0.3)近似下的大涡模拟(LES)湍流模型(亚音速近似)、计算湍流粘度的Deardorff模型和描述两相流的离散路径欧拉-拉格朗日方法模型进行计算。确定了建模的分析依赖项和初始数据:盲漂移的几何参数、通风和粉尘排放参数、分散粉尘成分、初始条件。在“MGU Shakhtpozhservice”有限责任公司的试验台架上对粉尘气溶胶动力学进行了试验数据,验证了所建立的计算机模型的充分性,仿真结果与实验数据吻合良好,证实了所建立的计算机模型的充分性。分析了盲漂移条件下的粉尘建模结果。给出了2.4、3.6、4.8 m3/s风量下盲漂截面上煤尘质量浓度的分布。局部通风机射流作用区域的悬浮粉尘浓度明显高于平动区,最高可达1.8 g/m3,允许值为150 mg/m3。得到了悬浮和沉淀煤尘浓度沿盲漂长度的依赖关系。通过分散成分分析,得出:以质量为单位的悬浮颗粒粒径分布函数的主最大值对应于粒径为5 ~ 7 μ m的颗粒,粒径为20 ~ 40 μ m的颗粒占显著比例;直径超过50微米的明显粉尘沉积。
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引用次数: 2
Metal Vapor Active Element with Inductive Dispenser 带感应分配器的金属蒸汽有源元件
K. Semenov, V. F. Fedorov, D. Shiyanov, M. Trigub
The paper presents the development of metal vapor active element with two energy sources. The first source provides the required vapor pressure of the work substance; the second source is used to pump active media. The resonant inverter was used for the inductive dispenser heating. The paper considers the design of the active element and the pilot plant which operability confirmed by waveforms of generation, current and voltage of a gas discharge tube. The inductive dispenser is used as a vaporizer of the working substance - metal atoms.
本文介绍了双能量源金属气相活性元素的研制。第一源提供所述工作物质所需的蒸汽压力;第二个源用于泵送活性介质。感应分配器加热采用谐振式逆变器。本文考虑了有源元件和中试装置的设计,并通过气体放电管的发电波形、电流波形和电压波形来验证其可操作性。电感分配器用作工作物质-金属原子的汽化器。
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引用次数: 0
Using Composite Insulating Materials to Improve Modal Filter Performance 采用复合绝缘材料改善模态滤波器性能
E. Chernikova, A. A. Ivanov
This paper presents a new approach for improving modal filter (MF) performance by using composite insulating materials with a relative permeability $mu_{r}gt1$. The method for making approximate calculations of inductance matrices was validated using simple two-conductor structures as an example. The per-unit-length parameters of the microstrip MF were calculated when the substrate permeability changes. Time responses were obtained for filters of different lengths. The results show that the increase of the substrate permeability leads to the increase of the time intervals between the decomposition pulses. This effect can be used to reduce the MF size or to decompose an ultrashort pulse of longer duration.
本文提出了一种利用相对磁导率为$mu_{r}gt1$的复合绝缘材料改善模态滤波器(MF)性能的新方法。以简单的双导体结构为例,验证了近似计算电感矩阵的方法。计算了基片磁导率变化时微带磁场的单位长度参数。得到了不同长度滤波器的时间响应。结果表明,基材渗透率的增加导致分解脉冲间隔时间的增加。这种效应可用于减小中频大小或分解持续时间较长的超短脉冲。
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引用次数: 2
Improving the Information Reliability in Medical Information System Based on Multi-agent Technology 基于多智能体技术提高医疗信息系统信息可靠性
O. Bodin, A. G. Ubiennykh, O. Bezborodova, S. Kharitonov, S. V. Vorob'eva, A. Bodin
In the article, the approach to improving the information reliability on the base of multi-agent technologies is proposed. Multi-agent technologies contribute to improving the quality and enlarging the functional capacities of diagnostics and treatment in medical information system. The point of the approach is the following: informational interaction in distributed medical information system is carried out with the help of “information reliability agents” which encapsulate information during transmission/receiving in the covering. It provides effective information transmission. It is proposed to control the state of data transmission/receiving between the units of distributed medical information system on the base of channel coding that ensures improving the validity of binary signals transmission/receiving.
本文提出了一种基于多智能体技术提高信息可靠性的方法。多智能体技术有助于提高医疗信息系统的诊断和治疗质量,扩大诊断和治疗的功能。该方法的要点是:通过“信息可靠性代理”实现分布式医疗信息系统中的信息交互,该代理将发送/接收过程中的信息封装在覆盖层中。它提供了有效的信息传递。提出了在信道编码的基础上控制分布式医疗信息系统各单元之间的数据收发状态,保证了二进制信号收发的有效性。
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引用次数: 1
Cryogenic Low Noise Amplifiers and Filters for Superconducting Qubit Readout 用于超导量子比特读出的低温低噪声放大器和滤波器
B. Ivanov, D. Volkhin, I. Novikov, A. G. Vostretsov
We show an experimental study of superconducting X-mon qubit based on low noise wideband measurement setup. The setup includes wide stop-band low frequency filters with a stopband frequency up to 13 GHz, the broadband low-noise cryogenic microwave amplifier (cLNA) operating at 3.8 K. The obtained power dissipation of the cLNA is below 20 mW, the frequency operating ranges from 6 GHz to 12 GHz with a gain of 30 dB. The equivalent noise temperature of the amplifier is bellow 6 K for the presented frequency range. We demonstrate here the characterization of the superconducting X-mon qubit coupled to an on-chip coplanar waveguide resonator. We show standard qubit experiments: one and two-tones qubit spectroscopy, ac-Stark shift experiments for probing and excitation power sweeps.
我们展示了一种基于低噪声宽带测量装置的超导X-mon量子比特的实验研究。该装置包括阻带频率高达13 GHz的宽阻带低频滤波器,工作在3.8 K的宽带低噪声低温微波放大器(cLNA)。得到的cLNA功耗低于20mw,工作频率为6ghz ~ 12ghz,增益为30db。在给定的频率范围内,放大器的等效噪声温度低于6 K。我们在这里展示了超导X-mon量子比特耦合到片上共面波导谐振器的特性。我们展示了标准量子比特实验:单频和双频量子比特光谱,探测和激发功率扫描的交流斯塔克位移实验。
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引用次数: 1
Verifying Reflex-software with SPIN: Hand Dryer Case Study 验证反射软件与旋转:烘干机案例研究
T. Liakh, N. Garanina, I. Anureev, V. Zyubin
Process-oriented programming is a natural way to describe control software as a set of communicating processes with executable states, that allows to speed up its development. The Reflex language is one of the representatives of the family of process-oriented languages. The paper justifies the possibility of applying the model checking method for verification of Reflex programs using the hand dryer case study. The case study includes specification of requirements for the hand dryer, control software in Reflex for it, the result of translation of the Reflex program and the requirements into the input language Promela of the model checker SPIN and LTL formulas, respectively, as well as verification of these formulas in SPIN.
面向过程的编程是一种自然的方法,它将控制软件描述为一组具有可执行状态的通信过程,从而加快其开发速度。反射语言是面向过程语言家族的代表之一。本文以干手机为例,论证了将模型检验方法应用于Reflex程序验证的可能性。本案例研究包括对干手机的需求说明、对干手机的Reflex控制软件、对Reflex程序的翻译结果以及对模型检查器SPIN和LTL公式的输入语言Promela的需求,以及在SPIN中对这些公式的验证。
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引用次数: 1
期刊
2020 21st International Conference of Young Specialists on Micro/Nanotechnologies and Electron Devices (EDM)
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